Abstract Title:

Inhibitory effects of taraxasterol and aqueous extract of Taraxacum officinale on calcium oxalate crystallization: in vitro study.

Abstract Source:

Ren Fail. 2018 Nov ;40(1):298-305. PMID: 29619876

Abstract Author(s):

Mahboubeh Yousefi Ghale-Salimi, Maryam Eidi, Nasser Ghaemi, Ramezan Ali Khavari-Nejad

Article Affiliation:

Mahboubeh Yousefi Ghale-Salimi


OBJECTIVE: We investigated and compared the effects of taraxasterol, aqueous extract of T. officinale (AET) aerial part, and potassium citrate (PC) on calcium oxalate (CaOx) crystallization in vitro.

MATERIALS AND METHODS: CaOx crystallization was induced by adding sodium oxalate to synthetic urine. Taraxasterol (2.5, 5, 7.5 and 12.5 μg/mL), extract (1, 2, 4 and 8 mg/mL), and PC (100, 150, 200 and 350 mg/mL) were subjected to anti-crystallization activities. The absorbance and %inhibition of nucleation of CaOx crystals were evaluated by spectrophotometer at 2, 4, 6, 8, 10, 20, 30, 40, 50 and 60 min and the number and morphology of crystals were studied by light microscopy after 60 min.

RESULTS: Presence of taraxasterol, extract and PC decreased absorbance in experimental samples compared to control, significantly. The nucleation of crystals is inhibited by taraxasterol, extract, and PC (26-64, 55-63 and 60-70%, respectively). The number of CaOx crystals were decreased in presence of taraxasterol (p < .01), extract (p < .001), and PC (p < .001) in a dose-dependent manner. Presence of taraxasterol, extract, and PC decreased the number of CaCOmonohydrate, while increased CaCOdihydrate crystals, significantly. Also, the diameter of CaCOdihydrate crystals was decreased in presence of taraxasterol, extract and PC, significantly.

CONCLUSIONS: This research indicated that taraxasterol and extract have anti-crystallization activities and effectiveness of the extract is more potent than taraxasterol. It could be because of another constituent in the extract with the synergistic effect.

Study Type : In Vitro Study
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