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Protein Purification-free Method of Binding Affinity Determination by Microscale Thermophoresis
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[Determination of plasma protein binding rate of methyl protodioscin with ultrafiltration]

Zhi-Hong Yao1, Xiu-Zhen Cao, Meng Shao

  • 1Institute of Traditional Chinese Medicine & Natural Products, Jinan University, Guangzhou 510632, China.

Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
|October 4, 2008
PubMed
Abstract

Insights

Methyl protodioscin exhibits a high plasma protein binding rate in both rat and human plasma. This finding is crucial for understanding its pharmacokinetic behavior and potential therapeutic applications.

Area of Science:

  • Pharmacology
  • Biochemistry

Background:

  • Methyl protodioscin is a compound with potential therapeutic applications.
  • Understanding plasma protein binding is essential for predicting drug efficacy and distribution.

Purpose of the Study:

  • To determine the plasma protein binding rate of methyl protodioscin.
  • To investigate the influence of concentration on binding rates.

Main Methods:

  • Ultrafiltration technique was utilized to assess plasma protein binding.
  • High-Performance Liquid Chromatography-Tandem Mass Spectrometry (HPLC-MS-MS) was employed for precise quantification.

Main Results:

  • Methyl protodioscin demonstrated high binding rates with rat plasma, ranging from 86.10% to 94.6%.
  • Binding rates with normal human plasma were also significant, varying from 82.11% to 88.52% across tested concentrations.

Conclusions:

  • Methyl protodioscin exhibits substantial binding to plasma proteins.
  • The high binding rate suggests a significant role in its pharmacokinetic profile.

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