title: Effects of tea catechin inhalation on methicillin-resistant Staphylococcus aureus in elderly patients in a hospital ward.
abstract: We investigated the effects of inhalation of tea catechin on MRSA in the 24 elderly in patients, who were known to carry MRSA in sputum. The patients in the catechin group (N=12) were administered an inhalation of tea catechin extracts (in saline/bromhexine) (3.7 g/L catechins, 43% of them are composed of epigallocatechin gallate), three times daily with hand nebulizer for four weeks. The clinical effects were compared with the control group (N=12) who were given an inhalation of saline/bromhexine alone. After a week of the course, the numbers of the patients with decreased or disappearance of MRSA in their sputum was significantly higher in the catechin group, compared with that in the control group (seven vs. no patients; P<0.05). The number of patients discharged during the study was significantly increased, and the days of hospital stay were significantly decreased in the catechin group compared with those in the control group (six vs. one patient; P<0.05, 51+/-22 vs. 85+/-50 days, mean+/-S.D.;P <0.05, respectively). No adverse effects were observed in any patients during the study. Catechin inhalation seemed to be safe, and at least temporarily effective in the reduction of MRSA and shortening of hospitalization.
authors.affiliation: Center for Clinical Trials, Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, 1-20-1 Handayama, Japan. hyamada@ham-med.ac.jp
authors.forename: H
authors.initials: H
authors.lastname: Yamada
authors.forename: K
authors.initials: K
authors.lastname: Ohashi
authors.forename: T
authors.initials: T
authors.lastname: Atsumi
authors.forename: H
authors.initials: H
authors.lastname: Okabe
authors.forename: T
authors.initials: T
authors.lastname: Shimizu
authors.forename: S
authors.initials: S
authors.lastname: Nishio
authors.forename: X D
authors.initials: XD
authors.lastname: Li
authors.forename: K
authors.initials: K
authors.lastname: Kosuge
authors.forename: H
authors.initials: H
authors.lastname: Watanabe
authors.forename: Y
authors.initials: Y
authors.lastname: Hara
mesh_terms: D000203:Activities of Daily Living; D000280:Administration, Inhalation; D000368:Aged; D000369:Aged, 80 and over; D002353:Carrier State / Q000188:drug therapy* / Q000382:microbiology; D002392:Catechin / Q000008:administration & dosage*; D003428:Cross Infection / Q000188:drug therapy* / Q000382:microbiology; D005260:Female; D015577:Geriatric Assessment; D006757:Hospital Units; D006801:Humans; D007564:Japan; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D016106:Methicillin Resistance; D013183:Sputum / Q000382:microbiology; D013203:Staphylococcal Infections / Q000188:drug therapy* / Q000382:microbiology; D013211:Staphylococcus aureus; D013662:Tea; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D013662:Tea; D002392:Catechin