Radiation Biomarker Research Using Mass Spectrometry

2007 ◽  
Author(s):  
Stephan B. Bach ◽  
Walter Hubert
Biomolecules ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 151 ◽  
Author(s):  
Alexander Triebl ◽  
Markus Wenk

Over the last two decades, lipids have come to be understood as far more than merely components of cellular membranes and forms of energy storage, and are now also being implicated to play important roles in a variety of diseases, with lipid biomarker research one of the most widespread applications of lipidomic techniques both in research and in clinical settings. Stable isotope labelling has become a staple technique in the analysis of small molecule metabolism and dynamics, as it is the only experimental setup by which biosynthesis, remodelling and degradation of biomolecules can be directly measured. Using state-of-the-art analytical technologies such as chromatography-coupled high resolution tandem mass spectrometry, the stable isotope label can be precisely localized and quantified within the biomolecules. The application of stable isotope labelling to lipidomics is however complicated by the diversity of lipids and the complexity of the necessary data analysis. This article discusses key experimental aspects of stable isotope labelling in the field of mass spectrometry-based lipidomics, summarizes current applications and provides an outlook on future developments and potential.


2014 ◽  
Vol 8 (2) ◽  
pp. 269-286 ◽  
Author(s):  
DaRue A Prieto ◽  
Donald J Johann ◽  
Bih-Rong Wei ◽  
Xiaoying Ye ◽  
King C Chan ◽  
...  

2014 ◽  
Vol 1844 (5) ◽  
pp. 927-932 ◽  
Author(s):  
Frederik Weiß ◽  
Bart H.J. van den Berg ◽  
Hannes Planatscher ◽  
Christopher J. Pynn ◽  
Thomas O. Joos ◽  
...  

2017 ◽  
Author(s):  
Weiwei Qin ◽  
Chan Zhao ◽  
Linpei Zhang ◽  
Ting Wang ◽  
Youhe Gao

AbstractTears covering the ocular surface is an important bio-fluid containing thousands of molecules, including proteins, lipids, metabolites, nucleic acids, and electrolytes. Tears are valuable resources for biomarker research of ocular and even systemic diseases. For application in biomarker studies, tear samples should ideally be stored using a simple, low-cost, and efficient method along with the patient’s medical records. For this purpose, we developed a novel Schirmer’s strip-based dry method that allows for storage of tear samples in vacuum bags at room temperature. Using this method, tear protein patterns can also be preserved. Liquid chromatography-mass spectrometry/mass spectrometry analysis of proteins recovered from the dry method and traditional wet method showed no significant difference. Some tissue/organ enriched proteins were identified in tear, thus tear might be a good window for monitoring the change of these tissues or organs. This dry method facilitates sample transportation and enables the storage of tear samples on a large scale, increasing the availability of samples for studying disease biomarkers in tears.


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