Biomed Chromatogr. 2009 Aug 5; Huang H, Chen G, Lu Z, Zhang J, Guo DAOxyresveratrol (trans-2,4,3',5'-tetrahydroxystilbene) is a major compound isolated from Smilax china, a Chinese herbal medicine. The rat urine and bile samples were pretreated by solid-phase extraction method after oral administration at a dose of 100 mg/kg of oxyresveratrol. Seven metabolites were identified by LC-MS/MS method with electrospray ionization in negative ion mode. The results indicated that main metabolites of oxyresveratrol were monoglucuronided and monosulfated oxyresveratrol. Based on the results, the metabolic pathway of oxyresveratrol in rat urine and bile was proposed. Copyright (c) 2009 John Wiley & Sons, Ltd.

Homeopathy. 2009 Jul; 98(3): 149-53Waisse-Priven S, Jurj G, Lima Thomaz LC, Tierno SA, Filho WL, Sos A, de Souza MFThis study sought to assess the effectiveness of individualized homeopathic treatment on dermatological complaints in a public outpatient clinic. METHODS: Children and adults spontaneously seeking for homeopathic treatment for dermatological complaints were prescribed single individualized remedies and followed up for a minimum of 3 months; assessment was clinical and recorded graphically. RESULTS: Forty-nine patients met the inclusion criteria. Outcomes were positive (59%); no effect (4%); drop-out (37%), from which 6% was due to homeopathic aggravation. No manifestations of suppression were observed. CONCLUSIONS: Outcome studies are useful to point out to the effectiveness of individualized homeopathic treatment in dermatological complaints. Outcomes suggest that actions focusing on pathological categories do not lead to homeopathic suppression.

Phytother Res. 2009 Aug 4; Wu W, Xu X, Dai Y, Xia LThe objective of the present study was to investigate the effect of the saponin fraction from Clematis chinensis Osbeck roots (SFC) on an osteoarthritis model in rats and to explore its underlying mechanisms. Osteoarthritis was induced by intraarticular injection of monosodium iodoacetate (MIA) into knee joints of rats, and SFC and diclofenac were orally administered once a day for 28 consecutive days. Joint swelling, macroscopic observation, histological assessment and proteoglycan (PG) degradation were examined. In vitro, cultured rabbit chondrocytes were stimulated with MIA and sodium nitroprusside (SNP), respectively. The effects of SFC on MIA- and SNP-induced chondrocyte injury were examined by MTT assay. It was shown that SFC (50, 100, 200 mg/kg) dose-dependently reduced cartilage injury and PG degradation induced by MIA. Diclofenac (4 mg/kg) only slightly alleviated cartilage injury and PG degradation. SFC also prevented SNP- or MIA-induced rabbit chondrocyte impairment. These results indicate that SFC is effective in ameliorating joint destruction and cartilage erosion in MIA-induced osteoarthritic in rats, and the mechanisms of action for protecting articular cartilage are through preventing extracellular matrix degradation and chondrocyte injury. Copyright (c) 2009 John Wiley & Sons, Ltd.