title: Protective effects of keishibukuryogan on the kidney of spontaneously diabetic WBN/Kob rats.
abstract: Keishibukuryogan, one of the traditional herbal formulations, is used clinically to improve blood circulation. It consists of the following five crude drugs: Cinnamomi Cortex, Poria, Moutan Cortex, Persicae Semen and Paeoniae Radix. In this study, the effects of keishibukuryogan against renal damage in spontaneously diabetic WBN/Kob rats were examined. Oral administration of keishibukuryogan significantly attenuated urinary protein excretion and serum creatinine levels. It did not affect body weight loss and blood glucose levels, but it suppressed renal and hepatic weights of WBN/Kob rats. Keishibukuryogan also reduced fibronectin and transforming growth factor beta(1) (TGF-beta(1)) protein expression in the renal cortex. Furthermore, lipid peroxidation levels in both kidney and liver were significantly lower than those of untreated control WBN/Kob rats. Urinary excretion of 8-hydroxy-deoxyguanosine was suppressed by keishibukuryogan treatment. These results suggest that keishibukuryogan reduces oxidative stress by hyperglycemia, and that it protects renal function and suppresses fibronectin deposition induced by TGF-beta(1) production in WBN/Kob rats.
authors.affiliation: Department of Kampo Diagnostics, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan. takako26@med.u-toyama.ac.jp
authors.forename: Takako
authors.initials: T
authors.lastname: Nakagawa
authors.forename: Hirozo
authors.initials: H
authors.lastname: Goto
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Hikiami
authors.forename: Takako
authors.initials: T
authors.lastname: Yokozawa
authors.forename: Naotoshi
authors.initials: N
authors.lastname: Shibahara
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Shimada
mesh_terms: D000080242:8-Hydroxy-2'-Deoxyguanosine; D000818:Animals; D001786:Blood Glucose / Q000187:drug effects; D003404:Creatinine / Q000097:blood; D003849:Deoxyguanosine / Q000031:analogs & derivatives / Q000652:urine; D003921:Diabetes Mellitus, Experimental / Q000188:drug therapy*; D004365:Drugs, Chinese Herbal / Q000494:pharmacology* / Q000627:therapeutic use*; D005353:Fibronectins / Q000187:drug effects; D006943:Hyperglycemia / Q000503:physiopathology; D007668:Kidney / Q000187:drug effects* / Q000503:physiopathology; D015227:Lipid Peroxidation / Q000187:drug effects; D008297:Male; D008519:Medicine, Traditional; D009929:Organ Size / Q000187:drug effects; D018384:Oxidative Stress / Q000187:drug effects*; D008517:Phytotherapy; D028321:Plant Preparations / Q000494:pharmacology / Q000627:therapeutic use; D020011:Protective Agents; D011507:Proteinuria / Q000188:drug therapy; D051381:Rats; D017208:Rats, Wistar; D053773:Transforming Growth Factor beta1 / Q000187:drug effects; D015431:Weight Loss / Q000187:drug effects
chemical_list: D001786:Blood Glucose; D004365:Drugs, Chinese Herbal; D005353:Fibronectins; D028321:Plant Preparations; D020011:Protective Agents; D053773:Transforming Growth Factor beta1; C054593:keishibukuryogan; D000080242:8-Hydroxy-2'-Deoxyguanosine; D003404:Creatinine; D003849:Deoxyguanosine