EXCEED THE SPACE PROVIDED. The long-term objective of our research is to discover what clinical and molecular changes occur before, during and after severe headaches. Our hypothesis is that the myriad headache triggers and behavioral expressions are mediated through interacting molecular pathways that may be studied by temporal, compositional analysis of accessible body fluids, in particular cerebrospinal fluid (CSF). Preliminary results have revealed many ictal changes in proteins, lipids and elements that reflect these migraine 'gateway' pathways, the magnitude of which reflect the clinical severity of the migraine ictus, suggesting a corresponding 'molecular ictus'. We propose to further dissect this clinical and molecular ictus by the analysis of CSF from migraineurs in headache and non-headache states, episodic tension headache sufferers and 'controls' who do not suffer from headaches. We will test the role of protein, lipid and elemental changes in headache by defining their molecular composition by 2D gel electrophoresis, liquid chromatography and mass spectrometry in temporally spaced collections from clinically well- defined participants. Delineation of these compositional differences should extend our pathophysiological understanding beyond the current theories, yield useful biomarkers and lead to more knowledge-based remedies or interventions. PERFORMANCE SITE ========================================Section End===========================================

Agency
National Institute of Health (NIH)
Institute
National Institute of Neurological Disorders and Stroke (NINDS)
Type
Research Project (R01)
Project #
5R01NS043295-03
Application #
6837730
Study Section
Special Emphasis Panel (ZRG1-BDCN-1 (01))
Program Officer
Porter, Linda L
Project Start
2003-01-01
Project End
2006-12-31
Budget Start
2005-01-01
Budget End
2005-12-31
Support Year
3
Fiscal Year
2005
Total Cost
$354,113
Indirect Cost
Name
Huntington Medical Research Institutes
Department
Type
DUNS #
077978898
City
Pasadena
State
CA
Country
United States
Zip Code
91101
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Fonteh, Alfred N; Chung, Rainbow; Sharma, Tara L et al. (2011) Cerebrospinal fluid phospholipase C activity increases in migraine. Cephalalgia 31:456-62
Arakaki, Xianghong; Foster, Hailey; Su, Lei et al. (2011) Extracellular sodium modulates the excitability of cultured hippocampal pyramidal cells. Brain Res 1401:85-94
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Fonteh, A N; Harrington, R J; Harrington, M G (2007) Quantification of free amino acids and dipeptides using isotope dilution liquid chromatography and electrospray ionization tandem mass spectrometry. Amino Acids 32:203-12
Harrington, Michael G; Fonteh, Alfred N; Cowan, Robert P et al. (2006) Cerebrospinal fluid sodium increases in migraine. Headache 46:1128-35