James Boulter
Dr. Jim Boulter is a Professor in the Department of Psychiatry and Biobehavioral Sciences. He received his doctorate degree in molecular biology from the University of California (Santa Barbara) and obtained postdoctoral training in molecular neuroscience at Dartmouth Medical School, the University of Texas (Houston), the University of California (San Diego), and the Salk Institute for Biological Studies. On the faculty of UCLA since 1996, Dr. Boulter's laboratory uses strains of genetically engineered mice to study the underlying cause of human inherited partial epilepsy and to characterize brain circuits involved in nicotine-induced dependence, tolerance, and withdrawal behaviors among habitual tobacco users. Dr. Boulter is a member of the UCLA Molecular Biology Institute, the Brain Research Institute, and the Hatos Research Center for Neuropharmacology.
| Work Address: |
Office MRL Building, Room 2774 Los Angeles, CA 90095 UNITED STATES |
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| Work Address: |
Laboratory MRL Building, Room 2557 Los Angeles, CA 90095 UNITED STATES |
Research Interests
| One ongoing project in my laboratory seeks to characterize genetically engineered mice, which harbor a mutation in a gene that is expressed in the central nervous system. In humans, this mutation is responsible for a hereditary disorder known as autosomal dominant nocturnal frontal lobe epilepsy. Through an examination of the behavioral and physiological characteristics of these mutant mice, we hope to learn how these mutations elicit seizures and contribute to the epileptic syndrome seen in humans. In addition, research using these mice will provide insight into the mechanism of epilepsy in general, show us how specific brain neurotransmitter systems are involved in epileptic phenomena, and may lead to discovery of new therapies for the treatment of selected epileptic disorders. In a second project, we are examining the physiology and behavior of genetically engineered mice in an effort to understand why abstinence from cigarette smoking evokes such strong somatic (physical) and affective (emotional) withdrawal symptoms. In spite of the obvious detrimental health effects of chronic tobacco use, smokers exhibit extremely high rates of relapse subsequent to a variety of smoking cessation programs. While smoking relapse is certainly a multifaceted and behaviorally complex phenomenon, elevated post-abstinence withdrawal scores are positively correlated with the resumption of tobacco smoking. In our animal studies, we are focused on the role of a single gene in the physiological and behavioral processes leading to the onset of withdrawal symptoms. A principal objective is to identify the brain region and circuits responsible for somatic and affective symptoms of nicotine withdrawal. The results of our experiments could provide a novel molecular target for the pharmacological relief of nicotine withdrawal symptoms, thereby decreasing post-smoking cessation relapse and helping to prevent the 430,000 tobacco-related deaths in the United States each year. |
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Taranda Julian, Maison Stéphane F, Ballestero Jimena A, Katz Eleonora, Savino Jessica, Vetter Douglas E, Boulter Jim, Liberman M Charles, Fuchs Paul A, Elgoyhen A Belén A point mutation in the hair cell nicotinic cholinergic receptor
prolongs cochlear inhibition and enhances noise protection..
PLoS biology.
2009; 7(1):
e18.
Lipovsek Marcela, Plazas Paola, Savino Jessica, Klaassen Alwin, Boulter Jim, Elgoyhen Ana Belén, Katz Eleonora Properties of mutated murine alpha4beta2 nicotinic receptors linked to
partial epilepsy..
Neuroscience letters.
2008; 434(2):
165-9.
Nakauchi, S. Brennan, R. J. Boulter, J. Sumikawa, K. Nicotine gates long-term potentiation in the hippocampal CA1 region via the activation of alpha2* nicotinic ACh receptors.
Eur J Neurosci.
2007; 25(9):
2666-81.
Vetter, D. E. Katz, E. Maison, S. F. Taranda, J. Turcan, S. Ballestero, J. Liberman, M. C. Elgoyhen, A. B. Boulter, J. The alpha10 nicotinic acetylcholine receptor subunit is required for normal synaptic function and integrity of the olivocochlear system.
Proc Natl Acad Sci U S A.
2007; 104(51):
20594-9.
Vetter Douglas E, Katz Eleonora, Maison Stéphane F, Taranda Julián, Turcan Sevin, Ballestero Jimena, Liberman M Charles, Elgoyhen A Belén, Boulter Jim The alpha10 nicotinic acetylcholine receptor subunit is required for
normal synaptic function and integrity of the olivocochlear system..
Proceedings of the National Academy of Sciences of the United States of America.
2007; 104(51):
20594-9.
Klaassen, A. Glykys, J. Maguire, J. Labarca, C. Mody, I. Boulter, J. Seizures and enhanced cortical GABAergic inhibition in two mouse models of human autosomal dominant nocturnal frontal lobe epilepsy.
Proc Natl Acad Sci U S A.
2006; 103(50):
19152-7.
Ladi, E. Nichols, J. T. Ge, W. Miyamoto, A. Yao, C. Yang, L. T. Boulter, J. Sun, Y. E. Kintner, C. Weinmaster, G. The divergent DSL ligand Dll3 does not activate Notch signaling but cell autonomously attenuates signaling induced by other DSL ligands.
J Cell Biol.
2005; 170(6):
983-92.
London, S. E. Boulter, J. Schlinger, B. A. Cloning of the zebra finch androgen synthetic enzyme CYP17: a study of its neural expression throughout posthatch development.
J Comp Neurol.
2003; 467(4):
496-508.
Cui, C. Booker, T. K. Allen, R. S. Grady, S. R. Whiteaker, P. Marks, M. J. Salminen, O. Tritto, T. Butt, C. M. Allen, W. R. Stitzel, J. A. McIntosh, J. M. Boulter, J. Collins, A. C. Heinemann, S. F. The beta3 nicotinic receptor subunit: a component of alpha-conotoxin MII-binding nicotinic acetylcholine receptors that modulate dopamine release and related behaviors.
J Neurosci.
2003; 23(35):
11045-53.
Lioudyno, M. I. Verbitsky, M. Glowatzki, E. Holt, J. C. Boulter, J. Zadina, J. E. Elgoyhen, A. B. Guth, P. S. The alpha9/alpha10-containing nicotinic ACh receptor is directly modulated by opioid peptides, endomorphin-1, and dynorphin B, proposed efferent cotransmitters in the inner ear.
Mol Cell Neurosci.
2002; 20(4):
695-711.
Elgoyhen, A. B., Katz, E., Vetter, D. E., Rothlin, C. V., Heinemann, S., and Boulter, J Alpha 10: A determinant of nicotinic cholinergic receptor function in mammalian vestibular and cochlear mechanosensory hair cells..
PNAS
2001; 98:
3501-3506.
Labarca, C Schwarz, J Deshpande, P Schwarz, S Nowak, MW Fonck, C Nashmi, R Kofuji, P Dang, H Shi, W Fidan, M Khakh, BS Chen, Z Bowers, BJ Boulter, J Wehner, JM Lester, HA Point mutant mice with hypersensitive alpha 4 nicotinic receptors show dopaminergic deficits and increased anxiety..
Proceedings of the National Academy of Sciences of the United States of America. .
2001; 98(5):
2786-91.
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