Posts classified under: Clinical and Preclinical Magnetic Resonance Spectroscopy

Edythe London, Ph.D.

Biography

Dr. London received her Ph.D. in Pharmacology from the University of Maryland and her postdoctoral training at Johns Hopkins School of Medicine. Before coming to UCLA in 2001, she was the Director of the Brain Imaging Center for the National Institute on Drug Abuse, and held faculty appointments at the University of Maryland and Johns Hopkins Schools of Medicine. Dr. London is a Professor-in-Residence in the Departments of Psychiatry and Biobehavioral Sciences and Molecular and Medical Pharmacology. Her work focuses on the use of neuroimaging to study neural circuitry underlying self-control and behaviors related to addiction.

Publications

A selected list of publications:

Lee, B, Groman, S, London, E D, Jentsch, J D   Dopamine D2/D3 receptors play a specific role in the reversal of a learned visual discrimination in monkeys, Neuropsychopharmacology, 2007; 32(10): 2125-2134.
Wong, D F, Kuwabara, H, Schretlen, D J, Bonson, K R, Nandi, A, Brasic, J R, Kimes, A S, Maris, M A, Kumar, A, Contoreggi, C, Links, J, Ernst, M, Rousset, O, Zukin, S, Grace, A A, Lee, J S, Rohde, C, Jasinski, D R, Gjedde, A, London, E D   Increased occupancy of dopamine receptors in human striatum during cue-elicited cocaine craving, Neuropsychopharmacology, 2006; 31(12): 2716-2727.
London, E D, Berman, S M, Voytek, B, Simon, S L, Mandelkern, M A, Monterosso, J, Thompson, P M, Brody, A L, Geaga, J A, Hong, M S, Hayashi, K M, Rawson, R A, Ling, W   Cerebral metabolic dysfunction and impaired vigilance in recently abstinent methamphetamine abusers, Biological Psychiatry, 2005; 58(10): 770-778.
Rotheram-Fuller, E, Shoptaw, S, Berman, S M, London, E D   Impaired performance in a test of decision-making by opiate-dependent tobacco smokers, Drug and Alcohol Dependence, 2004; 73(1): 79-86.
London, E D, Simon, S L, Berman, S M, Mandelkern, M A, Lichtman, A M, Bramen, J, … Ling, W   Mood disturbances and regional cerebral metabolic abnormalities in recently abstinent methamphetamine abusers, Archives of General Psychiatry, 2004; 61(1): 73-84.
Thompson, P M, Hayashi, K M, Simon, S L, Geaga, J A, Hong, M S, Sui, Y, Lee, J Y, Toga, A W, Ling, W, London, E D   Structural abnormalities in the brains of human subjects who use methamphetamine, Journal of Neuroscience, 2004; 24(26): 6028-6036.
Ernst, M, Bolla, K, Mouratidis, M, Contoreggi, C, Matochik, J A, Kurian, V, … London, E D   Decision-making in a risk-taking task: a PET study, Neuropsychopharmacology, 2002; 26(5): 682-691.
Bonson, K R, Grant, S J, Contoreggi C S, Links, J M, Metcalfe J, Weyl, H L, … London, E D   Neural systems and cue-induced cocaine craving, Neuropsychopharmacology, 2002; 26(3): 376-386.
Ernst, M, Heishman, S J, Spurgeon, L, & London, E D   Smoking history and nicotine effects on cognitive performance, Neuropsychopharmacology, 2001; 25(3): 313-319.
Faulkner, P, Ghahremani, D G, Tyndale, R F, Cox, C M, Kazanjian, A S, Paterson, N, Lotfipour, S, Hellemann, G S, Petersen, N, Vigil, C, London, E D   Reduced-Nicotine Cigarettes in Young Smokers: Impact of Nicotine Metabolism on Nicotine Dose Effects Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2017; 42(8): 1610-1618.
Okita, K, Mandelkern, M A, London, E D   Cigarette Use and Striatal Dopamine D2/3 Receptors: Possible Role in the Link between Smoking and Nicotine Dependence The international journal of neuropsychopharmacology, 2016; 19(11): 15-22.
Okita, K, Petersen, N, Robertson, C L, Dean, A C, Mandelkern, M A, London, E D   Sex Differences in Midbrain Dopamine D2-Type Receptor Availability and Association with Nicotine Dependence Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2016; 41(12): 2913-2919.
Robertson, C L, Ishibashi, K, Chudzynski, J, Mooney, L J, Rawson, R A, Dolezal, B A, Cooper, C B, Brown, A K, Mandelkern, M A, London, E D   Effect of Exercise Training on Striatal Dopamine D2/D3 Receptors in Methamphetamine Users during Behavioral Treatment Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2016; 41(6): 1629-36.
Morales, A M, Kohno, M, Robertson, C L, Dean, A C, Mandelkern, M A, London, E D   Gray-matter volume, midbrain dopamine D2/D3 receptors and drug craving in methamphetamine users Molecular psychiatry, 2015; 20(6): 764-71.
Robertson, C L, Ishibashi, K, Mandelkern, M A, Brown, A K, Ghahremani, D G, Sabb, F, Bilder, R, Cannon, T, Borg, J, London, E D   Striatal D1- and D2-type dopamine receptors are linked to motor response inhibition in human subjects The Journal of neuroscience : the official journal of the Society for Neuroscience, 2015; 35(15): 5990-7.
Kohno, M, Ghahremani, D G, Morales, A M, Robertson, C L, Ishibashi, K, Morgan, A T, Mandelkern, M A, London, E D   Risk-taking behavior: dopamine D2/D3 receptors, feedback, and frontolimbic activity Cerebral cortex (New York, N.Y. : 1991), 2015; 25(1): 236-45.
O’Neill, J, Tobias, M C, Hudkins, M, London, E D   Glutamatergic neurometabolites during early abstinence from chronic methamphetamine abuse The international journal of neuropsychopharmacology, 2014; 18(3): 236-45.
Kohno, M, Morales, A M, Ghahremani, D G, Hellemann, G, London, E D   Risky decision making, prefrontal cortex, and mesocorticolimbic functional connectivity in methamphetamine dependence JAMA psychiatry, 2014; 71(7): 812-20.
O’Neill, J, Tobias, M C, Hudkins, M, Oh, E Y, Hellemann, G S, Nurmi, E L, London, E D   Thalamic glutamate decreases with cigarette smoking Psychopharmacology, 2014; 231(13): 2717-24.
Groman, S M, Morales, A M, Lee, B, London, E D, Jentsch, J D   Methamphetamine-induced increases in putamen gray matter associate with inhibitory control Psychopharmacology, 2013; 229(3): 527-38.
Brown, A K, Mandelkern, M A, Farahi, J, Robertson, C, Ghahremani, D G, Sumerel, B, Moallem, N, London, E D   Sex differences in striatal dopamine D2/D3 receptor availability in smokers and non-smokers The international journal of neuropsychopharmacology, 2012; 15(7): 989-94.
Zorick, T, Lee, B, Mandelkern, M A, Fong, T, Robertson, C, Ghahremani, D G, Brown, A K, Sumerel, B, London, E D   Low striatal dopamine receptor availability linked to caloric intake during abstinence from chronic methamphetamine abuse Molecular psychiatry, 2012; 17(6): 569-71.
Ghahremani, D G, Lee, B, Robertson, C L, Tabibnia, G, Morgan, A T, De Shetler, N, Brown, A K, Monterosso, J R, Aron, A R, Mandelkern, M A, Poldrack, R A, London, E D   Striatal dopamine D₂/D₃ receptors mediate response inhibition and related activity in frontostriatal neural circuitry in humans The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012; 32(21): 7316-24.
Ishibashi, K, Berman, S M, Paz-Filho, G, Lee, B, Robertson, C, Mandelkern, M A, Wong, M L, Licinio, J, London, E D   Dopamine D2/D3 receptor availability in genetically leptin-deficient patients after long-term leptin replacement Molecular psychiatry, 2012; 17(4): 352-3.
Groman, S M, Lee, B, Seu, E, James, A S, Feiler, K, Mandelkern, M A, London, E D, Jentsch, J D   Dysregulation of D₂-mediated dopamine transmission in monkeys after chronic escalating methamphetamine exposure The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012; 32(17): 5843-52.
Payer, D E, Nurmi, E L, Wilson, S A, McCracken, J T, London, E D   Effects of methamphetamine abuse and serotonin transporter gene variants on aggression and emotion-processing neurocircuitry Translational psychiatry, 2012; 2(4): e80.
Dean, A C, Sevak, R J, Monterosso, J R, Hellemann, G, Sugar, C A, London, E D   Acute modafinil effects on attention and inhibitory control in methamphetamine-dependent humans Journal of studies on alcohol and drugs, 2011; 72(6): 943-53.
Zorick, T, Sugar, C A, Hellemann, G, Shoptaw, S, London, E D   Poor response to sertraline in methamphetamine dependence is associated with sustained craving for methamphetamine Drug and alcohol dependence, 2011; 118(2-3): 500-3.
Ghahremani, D G, Tabibnia, G, Monterosso, J, Hellemann, G, Poldrack, R A, London, E D   Effect of modafinil on learning and task-related brain activity in methamphetamine-dependent and healthy individuals Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2011; 36(5): 950-9.
Zorick, T, Mandelkern, M A, Lee, B, Wong, M-L, Miotto, K, Shabazian, J, London, E D   Elevated plasma prolactin in abstinent methamphetamine-dependent subjects The American journal of drug and alcohol abuse, 2011; 37(1): 62-7.
Zorick, T, Sevak, R J, Miotto, K, Shoptaw, S, Swanson, A-N, Clement, C, De La Garza, R, Newton, T F, London, E D   Pilot safety evaluation of varenicline for the treatment of methamphetamine dependence Journal of experimental pharmacology, 2010; 2(10): 13-8.
Zorick, T, Nestor, L, Miotto, K, Sugar, C, Hellemann, G, Scanlon, G, Rawson, R, London, E D   Withdrawal symptoms in abstinent methamphetamine-dependent subjects Addiction (Abingdon, England), 2010; 105(10): 1809-18.
Azizian, A, Nestor, L J, Payer, D, Monterosso, J R, Brody, A L, London, E D   Smoking reduces conflict-related anterior cingulate activity in abstinent cigarette smokers performing a Stroop task Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2010; 35(3): 775-82.
London, E D, Berman, S M, Mohammadian, P, Ritchie, T, Mandelkern, M A, Susselman, M K W, Schlagenhauf, F, Noble, E P   Effect of the TaqIA polymorphism on ethanol response in the brain Psychiatry research, 2009; 174(3): 163-70.
Lee, B, London, E D, Poldrack, R A, Farahi, J, Nacca, A, Monterosso, J R, Mumford, J A, Bokarius, A V, Dahlbom, M, Mukherjee, J, Bilder, R M, Brody, A L, Mandelkern, M A   Striatal dopamine d2/d3 receptor availability is reduced in methamphetamine dependence and is linked to impulsivity The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009; 29(47): 14734-40.
Brody, A L, Mandelkern, M A, Olmstead, R E, Allen-Martinez, Z, Scheibal, D, Abrams, A L, Costello, M R, Farahi, J, Saxena, S, Monterosso, J, London, E D   Ventral striatal dopamine release in response to smoking a regular vs a denicotinized cigarette Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2009; 34(2): 282-9.
Xu, J, Azizian, A, Monterosso, J, Domier, C P, Brody, A L, Fong, T W, London, E D   Gender effects on mood and cigarette craving during early abstinence and resumption of smoking Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2008; 10(11): 1653-61.
Berman, S M, Voytek, B, Mandelkern, M A, Hassid, B D, Isaacson, A, Monterosso, J, Miotto, K, Ling, W, London, E D   Changes in cerebral glucose metabolism during early abstinence from chronic methamphetamine abuse Molecular psychiatry, 2008; 13(9): 897-908.
Baicy, K, London, E D, Monterosso, J, Wong, M-L, Delibasi, T, Sharma, A, Licinio, J   Leptin replacement alters brain response to food cues in genetically leptin-deficient adults Proceedings of the National Academy of Sciences of the United States of America, 2007; 104(46): 18276-9.
Galynker, I I, Eisenberg, D, Matochik, J A, Gertmenian-King, E, Cohen, L, Kimes, A S, Contoreggi, C, Kurian, V, Ernst, M, Rosenthal, R N, Prosser, J, London, E D   Cerebral metabolism and mood in remitted opiate dependence Drug and alcohol dependence, 2007; 90(2-3): 166-74.
Xu, J, Mendrek, A, Cohen, M S, Monterosso, J, Simon, S, Brody, A L, Jarvik, M, Rodriguez, P, Ernst, M, London, E D   Effects of acute smoking on brain activity vary with abstinence in smokers performing the N-Back task: a preliminary study Psychiatry research, 2006; 148(2-3): 103-9.
Ernst M, Matochik J A, Heishman S J, Van Horn J D, Jons P H, Henningfield J E, London E D   Effect of nicotine on brain activation during performance of a working memory task Proceedings of the National Academy of Sciences of the United States of America, 2001; 98(8): 4728-33.
Mukhin A G, Gündisch D, Horti A G, Koren A O, Tamagnan G, Kimes A S, Chambers J, Vaupel D B, King S L, Picciotto M R, Innis R B, London E D   5-Iodo-A-85380, an alpha4beta2 subtype-selective ligand for nicotinic acetylcholine receptors Molecular pharmacology, 2000; 57(3): 642-9.

Rajesh Kumar, Ph.D.

Biography

Dr. Kumar has a doctoral degree in Radiology from Sanjay Gandhi Postgraduate Institute of Medical Sciences, UP, India in 2002. He received Postdoctoral training in Neurobiology at the Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, California from December 2002 to June 2006. Dr. Kumar has been an Assistant Researcher from July 2006 to September 14, 2013 the Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, California. Dr. Kumar joined in the Department of Anesthesiology with secondary appointment in the Department of Radiological Sciences, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, California in September 15, 2013. He has expertise in various magnetic resonance imaging (MRI) and spectroscopy procedures. Dr. Kumar’s research is based on the evaluation of the neural tissue integrity, resulting from breathing or cardiovascular effects, in brain areas of patients with obstructive sleep apnea (OSA) and heart failure (HF) using MR procedures. It helps understand the brain processes that affect autonomic, memory and mood regulations in patients with these conditions.Dr. Kumar is funded by National Institutes of Health (NIH) since August 2012. His current NIH R01 studies involve determination of the pathological stage and nature of white matter damage, using diffusion tensor imaging, including fiber tractography, diffusional kurtosis imaging, and magnetization transfer imaging procedures, in recently-diagnosed, treatment naïve OSA subjects, and examination of how damaged brain autonomic regulatory areas (hypothalamus, insula cortex, and cerebellum) respond to an autonomic challenge, using diffusion tensor imaging and functional MRI procedures, and the laterality of functional responses to that challenge in HF subjects. Dr. Kumar has published over 80 peer-reviewed research manuscripts, 5 book chapters, and over 140 abstracts presented in national and international scientific meetings.

Paul Macey, Ph.D.

Biography

Paul M. Macey is a neuroscientist who has worked at UCLA since 1999. He is an Associate Professor of Nursing, and serves in the School of Nursing Administration as Director of Information Technology and Innovation, and Chief Innovation Officer. Dr. Macey completed a degree in Electrical Engineering at the University of Canterbury, New Zealand, where he focused on bringing engineering approaches to the analysis of breathing signals recorded from infants during sleep. He started at UCLA in a post-doctoral position in the Department of Neurobiology, and continued as and Assistant then Associate Researcher. Dr. Macey then joined the School of Nursing and Brain Research Institute as a faculty member. Dr. Macey teaches in the undergraduate Nursing program, and serves on various faculty committees.

James McCracken, M.D.

Biography

Dr. McCracken is the Joseph Campbell Professor of Child Psychiatry and Director of the Division of Child and Adolescent Psychiatry at the UCLA NPI-Semel Institute (formerly the Neuropsychiatric Institute) in Los Angeles. Dr. McCracken is the principal investigator of the National Institute of Mental Health (NIMH) Research Center, “Translational Research to Enhance Cognitive Control,” which aims to develop and test innovative treatments for cognitive defects associated with child psychiatric illness. His other current areas of research include family-genetic studies of childhood disorders and the testing of new pharmacologic treatments for a variety of neuropsychiatric disorders in children, including attention-deficit/hyperactivity disorder (ADHD), autism, obsessive-compulsive disorder, and anxiety disorders.

Dr. McCracken received medical and postgraduate training at Baylor College of Medicine, Duke University, and UCLA before joining the faculty at UCLA in 1987. He is the recipient of several honors and awards, including the American Psychiatric Association (APA) Young Psychiatrist Research Award. He has published more than 150 papers in the area of child psychiatry and serves on the editorial board of the Journal of Child and Adolescent Psychopharmacology.

Dr. McCracken holds memberships in various local, national, and international professional organizations, including the APA, American Academy of Child and Adolescent Psychiatry, International Society for Research in Child and Adolescent Psychopathology, International Society of Psychoneuroendocrinology, and the Society for Neuroscience. He is listed in both the Best Doctors in America and America’s Top Doctors databases.