Gregor Hasler, M.D. is a Swiss psychiatry researcher,

psychiatrist A psychiatrist is a physician who specializes in psychiatry, the branch of medicine devoted to the diagnosis, prevention, study, and treatment of mental disorders. Psychiatrists are physicians and evaluate patients to determine whether their ...

and

psychotherapist Psychotherapy (also psychological therapy, talk therapy, or talking therapy) is the use of psychological methods, particularly when based on regular personal interaction, to help a person change behavior, increase happiness, and overcome prob ...

. He is professor and chair of psychiatry and psychotherapy at the

University of Fribourg The University of Fribourg (french: Université de Fribourg; german: Universität Freiburg) is a public university located in Fribourg, Switzerland. The roots of the university can be traced back to 1580, when the notable Jesuit Peter Canisi ...

(Switzerland). His research areas covers stress, depression,

bipolar disorders Bipolar disorder, previously known as manic depression, is a mental disorder characterized by periods of depression and periods of abnormally elevated mood that last from days to weeks each. If the elevated mood is severe or associated with ...

, and

eating disorders An eating disorder is a mental disorder defined by abnormal eating behaviors that negatively affect a person's physical or mental health. Only one eating disorder can be diagnosed at a given time. Types of eating disorders include binge eating ...

. His most frequently cited findings include: * Discovery of an association between short sleep duration and

obesity Obesity is a medical condition, sometimes considered a disease, in which excess body fat has accumulated to such an extent that it may negatively affect health. People are classified as obese when their body mass index (BMI)—a person's ...

(published in 200

* Demonstration of GABA, glutamate, and glutamine abnormalities in depression * Elucidation of the role of dopamine and norepinephrine in

bulimia nervosa Bulimia nervosa, also known as simply bulimia, is an eating disorder characterized by binge eating followed by purging or fasting, and excessive concern with body shape and weight. The aim of this activity is to expel the body of calories eaten ...

* Discovery of markedly reduced

metabotropic glutamate receptor 5 Metabotropic glutamate receptor 5 is an excitatory Gq-coupled G protein-coupled receptor predominantly expressed on the postsynaptic sites of neurons. In humans, it is encoded by the ''GRM5'' gene. Function The amino acid L-glutamate is t ...

in smokers and ex-smokers His work has been honored by various international awards, including the United States’ NARSAD Independent Investigator Award and the Robert Bing Award of the Swiss Academy of Medical Sciences. He is author of a book on resiliency and on the gut-brain-connection, both published in German (“Resilienz: Der Wir-Faktor”, Schattauer-Verlag, "Die Darm-Hirn-Connection: Revolutionäres Wissen für unsere psychische und körperliche Gesundheit", Schattauer-Verlag).

Biography

Hasler studied medicine at Zurich University, Switzerland. His residency included trainings in internal medicine, metabolic and eating disorders, and psychiatry at university hospitals in Zurich, London, and Paris. He received his medical degree in 1995. He was trained in

psychiatric epidemiology Psychiatric epidemiology is a field which studies the causes (etiology) of mental disorders in society, as well as conceptualization and prevalence of mental illness. It is a subfield of the more general epidemiology. It has roots in sociological st ...

by Jules Angst, M.D. In 2002, he became fellow of the Swiss Medical Federation (FMH, Specialist Accrediting Board of Switzerland). From 2003 to 2006 he was a Visiting Research Fellow at the Mood and Anxiety Disorders Program at the

National Institute of Mental Health The National Institute of Mental Health (NIMH) is one of 27 institutes and centers that make up the National Institutes of Health (NIH). The NIH, in turn, is an agency of the United States Department of Health and Human Services and is the prima ...

(supervisors: Wayne C. Drevets,

Dennis S. Charney Dennis S. Charney is an American biological psychiatrist and researcher, with expertise in the neurobiology and treatment of mood and anxiety disorders. He is the author of ''Neurobiology of Mental Illness'', ''The Physician's Guide to Depress ...

, Husseini Manji). He conducted a series of studies on biomarkers in mood, anxiety and eating disorders, as well as smoking ( GABA, glutamate systems,

catecholamines A catecholamine (; abbreviated CA) is a monoamine neurotransmitter, an organic compound that has a catechol (benzene with two hydroxyl side groups next to each other) and a side-chain amine. Catechol can be either a free molecule or a subst ...

). From 2010 onwards, he served as professor of psychiatry at the

University of Bern The University of Bern (german: Universität Bern, french: Université de Berne, la, Universitas Bernensis) is a university in the Swiss capital of Bern and was founded in 1834. It is regulated and financed by the Canton of Bern. It is a compreh ...

, Switzerland, where he was the head of the section on

molecular psychiatry ''Molecular Psychiatry'' is a peer-reviewed scientific journal published by Nature Publishing Group. It covers research in biological psychiatry. Abstracting and indexing The journal is abstracted and indexed in: According to the '' Journal Ci ...

. In 2016, he was visiting professor at the

Icahn School of Medicine at Mount Sinai The Icahn School of Medicine at Mount Sinai (ISMMS or Mount Sinai), formerly the Mount Sinai School of Medicine, is a private medical school in New York City. It is the academic teaching arm of the Mount Sinai Health System, which manages eig ...

, New York. In 2019, he became professor and chair of psychiatry and psychotherapy at the

(Switzerland).

Professional network

* Full member of the

American College of Neuropsychopharmacology Founded in 1961, the American College of Neuropsychopharmacology (ACNP) is a professional organization of leading brain and behavior scientists. The principal functions of the college are research and education. Their goals in research are to offe ...

. * President of the Swiss Society for Bipolar Disorders and as chapter leader of the International Society for Bipolar Disorders. * Scientific advisor of the German Federal Ministry of Research and Education. * Secretary of the Section of Pharmacotherapy of the

World Psychiatric Association The World Psychiatric Association is an international umbrella organisation of psychiatric societies. Objectives and goals Originally created to produce world psychiatric congresses, it has evolved to hold regional meetings, to promote profess ...

* Member of the Scientific Advisory Panel,

European College of Neuropsychopharmacology The European College of Neuropsychopharmacology (ECNP) is a pan-European, non-profit scientific association that serves as a platform to exchange and promote research in the field of neuropsychopharmacology. The ECNP “is committed to ensuring t ...

Publications

External links

* https://www3.unifr.ch/directory/de/people/287773/4eb60 * https://www3.unifr.ch/med/de/research/groups/hasler/ * https://gregorhasler.ch {{DEFAULTSORT:Hasler, Gregor Year of birth missing (living people) Living people Psychotherapists University of Zurich alumni Academic staff of the University of Bern Swiss psychiatrists