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[Establishment and evaluation on the method for platelet intracellular trehalose determination]
Jun Zhou1, Jing-Han Liu, Xi-Lin Ouyang
1Department of Blood Transfusion, Gerneral Hospital of PLA, Center of Clinical Transfusion of PLA, Beijing 100853, China.
Zhongguo Shi Yan Xue Ye Xue Za Zhi
|January 6, 2005
Summary
This study developed a fast and accurate method for measuring trehalose in platelets, crucial for optimizing freeze-drying techniques and improving platelet preservation.
Area of Science:
- Biochemistry
- Hematology
- Analytical Chemistry
Context:
- Platelets are vital for hemostasis and transfusion medicine.
- Preserving platelets using freeze-drying requires optimizing cryoprotective agents like trehalose.
- Accurate intracellular trehalose quantification is essential for this optimization.
Purpose:
- To establish a convenient, rapid, and applicable method for determining intracellular trehalose concentration in platelets.
- To validate the method using high-performance liquid chromatography (HPLC).
- To optimize trehalose loading for freeze-drying applications.
Summary:
- A method involving trichloroacetic acid precipitation of protein, followed by sulfuric-anthrone reaction and HPLC analysis, was developed for platelet trehalose determination.
- The method demonstrated good recovery rates (100.7%), stability, and repeatability.
- Optimal loading conditions were identified, with 1.7% trehalose in the loading solution resulting in intracellular concentrations of 0.22% (sulfuric-anthrone) and 0.2% (HPLC).
Impact:
- Provides a sensitive, accurate, and rapid assay for platelet intracellular trehalose.
- Facilitates research into freeze-drying and preservation of platelets.
- Supports advancements in transfusion medicine and platelet storage technologies.