Andres M. Lozano is a Spanish-Canadian neurosurgeon and scientist known for [1] his work in Deep Brain Stimulation [2] and MR guided Focused Ultrasound Surgery. He holds the Alan & Susan Hudson Cornerstone Chair in Neurosurgery at the University Health Network Toronto and is a University Professor at the University of Toronto. [3] His work has been covered by major international news publications including BBC, [4] Scientific American, [5] The Independent, [6] The Globe and Mail [7] and NPR. [8]
Andres Lozano was born in Sevilla, Spain, and moved to Canada at a young age. He completed his B.Sc in Cell Biology and his M.D. at the University of Ottawa in 1983. He then pursued a Ph.D. in Neurobiology at McGill University, graduating in 1989. Lozano completed his neurosurgical training, earning his FRCS(C) in 1990, and became a diplomate of the American Board of Neurological Surgery in 1994.
Dr. Lozano's career has been centered at the University of Toronto, [9] where he has held several positions, including the Dan Family Chairman of Neurosurgery (2010–2020) and the RR Tasker Chair in Functional Neurosurgery (1999–2021). He has also been a Canadian Research Chair in Neuroscience and an active staff member at the University Health Network since 1991.
Lozano has contributed extensively to the development and application of Deep Brain Stimulation and Focused Ultrasound Surgery for various neurological disorders, including Parkinson's disease, dystonia, depression, and Alzheimer's disease. [10] His research has resulted in over 830 publications with an h-index above 145, [11] ranking him among the most highly cited neurosurgeons globally according to Clarivate. [12] [13]
His team's work has included the mapping of cortical and subcortical circuits and the development of novel therapies. Lozano has led several "first in man" trials, including DBS applications for conditions like Huntington's disease and anorexia. Together with Helen Mayberg, in 2005, he published on the first human DBS for depression trial in the modern-era of DBS, [14] targeting Brodman area 25, which has led to multiple completed and ongoing clinical trials for DBS for depression, globally. [15] In 2010, he led the first pilot trial for human DBS in Alzheimer's disease trial targeting the Fornix region, which has led to multiple clinical trials, as well [10]
He has also been named one of Thomson Reuters' Highly Cited Researchers program and Most Influential Scientific Minds annually from 2015 to 2022.
Lozano serves as the Editor-in-Chief of Stereotactic and Functional Neurosurgery. [23] He has been a founding member of several research organizations, including the Michael J. Fox Foundation and the Weston Foundation.
Some of Dr. Lozano's publications in recent years include:
Deep brain stimulation (DBS) is a surgical procedure that implants a neurostimulator and electrodes which sends electrical impulses to specified targets in the brain responsible for movement control. The treatment is designed for a range of movement disorders such as Parkinson's disease, essential tremor, and dystonia, as well as for certain neuropsychiatric conditions like obsessive-compulsive disorder (OCD) and epilepsy. The exact mechanisms of DBS are complex and not entirely clear, but it is known to modify brain activity in a structured way.
Pallidotomy is a neurosurgical procedure. It is used to treat Parkinson's disease and some other conditions, often as an alternative to deep brain stimulation. It involves placing a tiny electrical probe in the globus pallidus, one of the basal ganglia of the brain, to damage it. Unilateral pallidotomy can cause side effects including problems with language learning, visuospatial constructional ability, and executive functions. Bilateral pallidotomy is not effective, with many severe side effects.
Helen S. Mayberg, is an American neurologist. Mayberg is known in particular for her work delineating abnormal brain function in patients with major depression using functional neuroimaging. This work led to the first pilot study of deep brain stimulation (DBS), a reversible method of selective modulation of a specific brain circuit, for patients with treatment-resistant depression. As of August 2019, she has published 211 original peer-reviewed articles, 31 books and book chapters, and acted as principal investigator on 24 research grants. Mayberg is coinventor with Andres Lozano of “Method for Treating Depression Mood Disorders and Anxiety Disorders using Neuromodulation,” US patent 2005/0033379A1. St. Jude Medical Neuromodulation licensed her intellectual property to develop Subcallosal Cingulate Deep Brain Stimulation for Treatment-Resistant Unipolar and Bipolar Depression for the treatment of severe depression. As of 2018, Mayberg holds positions as Professor of Neurology and Neurosurgery and Professor, Psychiatry and Neuroscience, both at Mount Sinai Medical School, and Professor of Psychiatry, Emory University; Emory University Hospital. Since 2018, she has served as Director, Nash Family Center for Advanced Circuit Therapeutics at the Icahn School of Medicine at Mount Sinai.
Ablative brain surgery is the surgical ablation by various methods of brain tissue to treat neurological or psychological disorders. The word "Ablation" stems from the Latin word Ablatus meaning "carried away". In most cases, however, ablative brain surgery does not involve removing brain tissue, but rather destroying tissue and leaving it in place. The lesions it causes are irreversible. There are some target nuclei for ablative surgery and deep brain stimulation. Those nuclei are the motor thalamus, the globus pallidus, and the subthalamic nucleus.
The research in Parkinson's disease refers to any study intended to help answer questions about etiology, diagnostic approaches or new treatments of Parkinson's disease (PD) by studying their effects on human subjects. Clinical trials are designed and conducted by scientists and medical experts, who invite participants to undergo testing new vaccines, therapies, or treatments.
Andrew John Lees FRCP FRCP(G) FMedSci is Professor of Neurology at the National Hospital for Neurology and Neurosurgery, Queen Square, London and University College London. In 2011 he was named as the world's most highly cited Parkinson's disease researcher.
David Charles is an American neurologist, professor and vice-chair of neurology, and the medical director of Telehealth at Vanderbilt University Medical Center.
Neuromodulation is "the alteration of nerve activity through targeted delivery of a stimulus, such as electrical stimulation or chemical agents, to specific neurological sites in the body". It is carried out to normalize – or modulate – nervous tissue function. Neuromodulation is an evolving therapy that can involve a range of electromagnetic stimuli such as a magnetic field (rTMS), an electric current, or a drug instilled directly in the subdural space. Emerging applications involve targeted introduction of genes or gene regulators and light (optogenetics), and by 2014, these had been at minimum demonstrated in mammalian models, or first-in-human data had been acquired. The most clinical experience has been with electrical stimulation.
Alim Louis Benabid is a French-Algerian emeritus professor, neurosurgeon and member of the French Academy of Sciences, who has had a global impact in the development of deep brain stimulation (DBS) for Parkinson's disease and other movement disorders. He became emeritus professor of biophysics at the Joseph Fourier University in Grenoble in September 2007, and chairman of the board of the Edmond J. Safra Biomedical Research Center in 2009 at Clinatec, a multidisciplinary institute he co-founded in Grenoble that applies nanotechnologies to neurosciences.
The Krembil Research Institute, formerly known as the Toronto Western Research Institute, is an academic medical research institute in Toronto. It is one of the largest research institutes in Canada focusing on human neurological disease.
The mesencephalic locomotor region (MLR) is a functionally defined area of the midbrain that is associated with the initiation and control of locomotor movements in vertebrate species.
Ali R. Rezai is an Iranian-born American neurosurgeon and neuroscientist. His work and research has focused on neuromodulation treatments for patients with neurological and mental health conditions, including neuromodulation techniques such as deep brain stimulation (DBS) through brain chip implants to treat Parkinson's disease tremors, obsessive–compulsive disorder, Alzheimer's disease, traumatic brain injury, spinal cord injury, and addiction. Recent research since 2020 has focused on deep brain stimulation for addiction treatment, as well as focused ultrasound to treat tremor, addiction and Alzheimer's disease.
Sridevi Sarma is an American biomedical and electrical engineer known for her work in applying control theory to improve therapies for neurological disorders such as Parkinson's disease and epilepsy. She is vice dean for graduate education of the Johns Hopkins University Whiting School of Engineering, associate director of the Johns Hopkins Institute for Computational Medicine, and an associate professor in the Johns Hopkins Department of Biomedical Engineering.
Konstantin Slavin is a Professor and Head of the Department of Stereotactic and functional neurosurgery at the University of Illinois College of Medicine. He is a former president of the American Society for Stereotactic and functional neurosurgery and current vice-president of the World Society for Stereotactic and Functional Neurosurgery. His specialties include Aneurysm, Brain surgery, Brain Tumor, Cerebrovascular Disorders, Craniotomy, Dystonia, Essential Tremor, Facial Nerve Pain, Facial Pain, Glioblastoma, Headache disorders, Laminectomy, Lower back pain, Movement Disorders, Multiple Sclerosis, Neck Pain, Neurosurgery, Neurosurgical Procedures, Pain, Parkinson Disease, Spinal Cord Injuries, and Stroke.
Jerrold Lee Vitek is an American neurologist. He is the Head of the Neurology Department, Director of the Neuromodulation Research Program, and Center Director of the University of Minnesota Udall Center of Excellence for Parkinson's Research. Vitek's clinical interests include movement disorders and evaluation for deep brain stimulation (DBS) and his current research activities focus on Parkinson's disease, dystonia, tremor and deep brain stimulation.
Robert Joseph BuchananKM+ is an American neurosurgeon, psychiatrist, and bioethicist who is best known for his contributions to the field of neuroscience, psychosurgery, and neuroethics. He is an associate professor of neurosurgery at Dell Medical School, University of Texas at Austin and maintains courtesy associate professor appointments in the school's department of neurology and department of psychiatry and behavioral sciences.
Michael S. Okun is an American neurologist, neuroscientist and author. He is the co-founder and director of the Norman Fixel Institute for Neurological Diseases at University of Florida Health and is also the chair of the Department of Neurology at the University of Florida and the Medical Director/Advisor for the Parkinson's Foundation. He is the fifth person at the University's College of Medicine to hold the rank of Distinguished Professor.
Alberto Priori is an Italian neurologist, academic, and author. He is a Professor of Neurology at the University of Milan, Director of Neurology 1 Unit at San Paolo Hospital, and the Founder and Coordinator of Aldo Ravelli Center of the University of Milan. He also serves as President of the Neurophysiopatology Techniques Course, and Professor of Postgraduate Schools - Medicine, Healthcare, Dental Medicine at the same University.
Adaptive Deep Brain Stimulation (aDBS), also known as Closed Loop Deep Brain stimulation (clDBS), is a neuro-modulatory technique currently under investigation for the treatment of neurodegenerative diseases.
Hagai Bergman is an Israeli neuroscientist best known for his work on the basal ganglia and their involvement in movement disorders, especially Parkinson's disease. He is currently the Simone and Bernard Guttman Chair in Brain Research and Professor of Physiology in the Edmond and Lily Safra Center at the Hebrew University of Jerusalem.
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