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Home: Community: Researcher Profiles
Researcher Profile

RESEARCHER INFORMATION
First Name:Xianlin
Last Name:Han
Title:Associate Professor of Medicine
Advanced Degrees:Ph.D.
Affiliation:Washington University School of Medicine in St. Louis
Department:Internal Medicine
Street Address 1:Box 8020
Street Address 2:660 S. Euclid Ave.
City:St. Louis
State/Province:MO
Zip/Postal Code:63110
Country/Territory:U.S.A.
Phone:314/747-2877
Fax:314/362-1402
Email Address: 
Disclosure:
(view policy) 
Member reports no financial or other potential conflicts of interest. [Last Modified: 12 April 2008]
View all comments by Xianlin Han
Clinical Interests:
Polyglutamine Disorders (Huntington's, etc.), Alzheimer Disease, Neurodevelopmental Disorders (Down syndrome, etc.), Neuromuscular Disorders (ALS, etc.), Stroke and Trauma, Aging Process, Prion Diseases, Tauopathies, Parkinson Disease
Research Focus:
Electrophysiology, Lipidomics, Molecular and Cell biology, Chemistry/Pharmacology, Proteomics, Signal transduction, Neurobiology, Neuropathology, Diagnosis, Tau/Cytoskeleton, Animal Models, A-beta PP/A-beta, Apoptosis/Cell cycle, Clinical trials, Oxidative Stress, Protein structure/chemistry
Work Sector(s):
University
Web Sites:
Professional: http://dbbs.wustl.edu/dbbs/website.nsf/FLUP2/02C23D62655AD2C9862573670064FE41?OpenDocument
Researcher Bio
Zhejiang University, P.R. China B.S. 1982 Chemistry
Zhejiang University, P.R. China M.S. 1985 Physical Chemistry
Washington University, St. Louis, MO M.A. 1987 Physical Chemistry
Washington University, St. Louis, MO Ph.D. 1990 Biophysical Chemistry

1990 – 1992 Research Associate, Bioorganic Chemistry and Molecular Pharmacology, Washington University, St. Louis, MO
1992 – 1997 Research Instructor, Bioorganic Chemistry and Molecular Pharmacology, Washington University, St. Louis, MO
1997 – 2000 Research Assistant Professor, Bioorganic Chemistry and Molecular Pharmacology, Washington University, St. Louis, MO
2000 – Present Assistant Professor, Internal Medicine, Washington University, St. Louis, MO

Professional Memberships:
American Chemical Society
American Association for the Advancement of Science
The American Society for Biochemistry and Molecular Biology
The Society for Neuroscience
The American Society for Mass Spectrometry
International Society for Mass Spectrometry

Top Papers
1. Han, X., Holtzman, D.M., and McKeel, D. (2001) Plasmalogen deficiency in early Alzheimer’s disease subjects and in animal models: Molecular characterization using electrospray ionization mass spectrometry. J. Neurochem. 77, 1168-1180.
2. Han, X. and Gross, R.W. (2001) Quantitative analysis and molecular species fingerprinting of triacylglyceride molecular species directly from lipid extracts of biological samples by electrospray ionization tandem mass spectrometry. Anal. Biochem. 295, 88-100.
3. Pike, L.J., Han, X., Chung, K.-N., Gross, R.W. (2002) Lipid rafts are enriched in arachidonic acid and plasmenylethanolamine and their composition is independent of caveolin-1 expression: A quantitative electrospray ionization/mass spectrometric analysis. Biochemistry 41, 2075-2088.
4. Han, X., Holtzman, D.M., McKeel Jr., D.W., Kelley, J., and Morris, J.C. (2002) Substantial sulfatide deficiency and ceramide elevation in very early Alzheimer’s disease: Potential role in disease pathogenesis. J. Neurochem. 82, 809-818.
5. Han, X., Cheng, H., Fryer, J.D., Fagan, A.M., and Holtzman, D.M. (2003) Novel role for apolipoprotein E in the central nervous system: Modulation of sulfatide content. J. Biol. Chem. 278, 8043-8051.
6. Acharya, U., Patel, S., Koundakjian, E., Nagashima, K., Han, X., and Acharya, J.K. (2003) Modulation of sphingolipid biosynthetic pathway rescues photoreceptor degeneration. Science 299, 1740-1743.
7. Han, X. and Gross, R. W. (2003) Global analyses of cellular lipidomes directly from crude extracts of biological samples by electrospray ionization mass spectrometry: A bridge to lipidomics. J. Lipid Res. 44, 1071-1079.
8. Han, X., Fagan, A.M., Morris, J. C., Xiong, C., and Holtzman, D.M. (2003) CSF sulfatide is decreased in individuals with mild cognitive impairment/very mild dementia. Ann. Neurol. 54, 115-119.
9. Cheng, H., Xu, J., McKeel Jr., D.W., and Han, X. (2003) Specificity and potential mechanism of sulfatide deficiency in Alzheimer’s disease: An electrospray ionization mass spectrometric study. Cell. Mol. Biol. In press.
10. Lee, J.-T., Xu, J., Yang, D.-I., Ku, G., Han, X., and Hsu, C.-Y. (2003) Amyloid beta peptides induce cell death through activation of neutral sphingomyelinase-ceramide pathway in oligodendrocytes in culture. J. Cell. Biol. In press


What is the greatest void to date in our knowledge of Alzheimer's Disease?
Unified theory and effective biomarkers
What are the top three papers (not yours) you have read recently?
1. Daniel Figeys (2003) Proteomics in 2002: A year of technical development and wide-ranging applications. Anal. Chem. 75, 2891-2905.
2. Growdon, J.H. (1999) Biomarkers of Alzheimer's disease. Arch. Neurol. 56, 281-283.
3. Emmerling, M.R., Gracon S., and Roher A.E. (1999) Towards a unifying hypothesis of Alzheimer's disease pathogenesis and pathophysiology. In "Clinical Diagnosis and management og Alzheimer's disease". 2ed edtion (Gauthier S., ed.).
If resources were not limited, what research projects would you pursue?
neuronal proteomics
What is your leading hypothesis?
inflammation
What piece of missing evidence would help prove it?
real good animal models

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