Pharma / Biotech

Pharmacokinetic of gastrodigenin rhamnopyranoside from Moringa seeds in rodents.

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Pharmacokinetic of gastrodigenin rhamnopyranoside from Moringa seeds in rodents.

Fitoterapia. 2019 Aug 27;:104348

Authors: Li W, Sun C, Deng W, Liu Y, Adu-Frimpong M, Yu J, Xu X

Gastrodigenin rhamnopyranoside (GR) is a hepatoprotective compound that exists in Moringa oleifera seeds. However, the UPLC-MS/MS method for the determination of GR (in-vitro/in-vivo) is lacking clarification. Herein, this study established the UPLC-MS/MS technique, which was effective and sensitive for the investigation of the pharmacokinetics and biodistribution of GR in rats and mice. The separation was achieved with a Shim-pack XR-ODS III C18 column (2.0 × 75 mm, 1.6 μm) at 40 °C, while the mobile phase (Acetonitrile/0.1% Formic acid =12:82, v/v) was at an eluting rate of 0.2 mL/min. The Multiple Reaction Monitoring (MRM) was selected for quantification, i.e., m/z [M + HCOO]- 314.9 → 269 for GR and m/z [M + HCOO] – 182.85 → 137 for Tyrosol as the internal standard. The calibration curves were linearly ranged from 10 to 2500 ng/mL (r ≥ 0.999) with a lower-limit-of-quantification (LLOQ) of 10 ng/mL in the various biological samples (plasma, liver, heart, lung, spleen, brain, kidney). The intra- and inter-day precision was within 5%, while accuracy ranged from -11.4% – 8.33%. Recovery and matrix effect were with 80.32 to 101.31% and 90.36 to 103.76%, respectively, in a reasonable range. After oral and intravenous administration, GR was detected within 3 h but decreased rapidly in plasma, indicating fast elimination. Also, GR was quickly distributed in the various tissues, particularly in the kidney and spleen. The results demonstrated that the established UPLC-MS/MS method was highly linear, precise and accurate with the potential to be used for the quantitative analysis of GR in-vivo.

PMID: 31470062 [PubMed – as supplied by publisher]

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