MAR 19, 2015 7:30 AM PDT

Keynote - The Environmental Causes of Schizophrenia - Developmental Hazards, Social Defeat, and Drug Abuse

Presented at: Neuroscience
Speakers
  • Professor of Psychiatric Research, Institute of Psychiatry, King's College London
    Biography
      Robin Murray is Professor of Psychiatric Research at the Institute of Psychiatry, and indeed has spent most of his working life there apart from one year in the USA: fortunately the latter did not do him too much harm. His particular interest is in understanding the causes of psychosis, and he and his colleagues have contributed to the understanding that environmental factors such as obstetric events, heavy cannabis use and migration increase the risk of developing schizophrenia-like psychoses. He is also sees people with psychosis at the South London and Maudsley NHS Trust who are been referred from across the UK because they have not responded to treatment locally. He has written numerous articles, not all of the boring, and is the second most frequently cited psychiatrist outside the USA; he has supervised 52 PhDs and 35 of his students have become professors. He was elected a Fellow of the Royal Society in 2010 and received a knighthood in 2011.

    Abstract:

    Traditional psychiatric textbooks describe schizophrenia as a clinical enigma of unknown aetiology. However, this is no longer true. We now know a great deal about the risk factors, or contributory causes, of schizophrenia. These can be roughly divided into two main types; those which result in a) aberrant neurodevelopment and b) those which cause dopamine dysregulation; both characteristic abnormalities found in schizophrenia. Genetic factors are, of course, pre-eminent. These will be discussed elsewhere. However, certain environmental factors have been consistently associated with schizophrenia. Some such as adverse obstetric events (e.g. prenatal infection, perinatal hypoxia) impair neurodevelopment. Others such as abuse of drugs such as amphetamines, cocaine and cannabis which increase striatal dopamine also increase risk. In recent years it has become clear that heavy use of high potency cannabis is responsible for a significant proportion of psychosis. Psychotogenic "legal highs" such as synthetic cannabinoids and cathinones are becoming an increasing cause of acute psychosis. A range of social adversities such as child abuse, adverse life events, migration/minority ethnicity appear also to facilitate dopamine dysregulation and consequent psychosis. Curiously, psychosis is more common in those born and brought up in large cities than in rural areas. Most recently, it has become clear that the incidence is much higher in cities in Northern countries such as UK and Holland than in both rural and urban areas in Spain and Italy. The exact reason(s) for these differences are unclear but speculation centres on social fragmentation and social isolation. The challenge for researchers is now to trace the pathogenic pathways from risk factors to psychosis.


    Show Resources
    You May Also Like
    SEP 05, 2019 4:00 PM CEST
    C.E. CREDITS
    SEP 05, 2019 4:00 PM CEST
    DATE: September 5, 2019TIME: 7:00am PT, 10:00am ET, 4:00pm CEST PCR (Polymerase Chain Reaction) has gone through a massive evolution since its development in 1983. Besides it...
    JAN 23, 2020 9:00 AM PST
    C.E. CREDITS
    JAN 23, 2020 9:00 AM PST
    DATE: January 23, 2020 TIME: 9:00am PST, 12:00pm EST...
    FEB 19, 2020 11:00 AM PST
    C.E. CREDITS
    FEB 19, 2020 11:00 AM PST
    DATE: February 19, 2020TIME: 11:00am PST, 2:00pm EST...
    OCT 02, 2019 11:00 AM PDT
    OCT 02, 2019 11:00 AM PDT
    DATE: October 2, 2019TIME: 11:00am PDT, 2:00pm EDT Ditch the Excel spreadsheets and manage your molecular workflows entirely in your LIMS Achieve configuration of molecular workf...
    FEB 26, 2020 9:00 AM PST
    C.E. CREDITS
    FEB 26, 2020 9:00 AM PST
    DATE: February 26, 2020 TIME: 9:00am PST 3D cell culture and analysis and the study of organoids and spheroids are becoming more prevalent as a research method in publications as traditional...
    NOV 18, 2019 7:00 AM PST
    C.E. CREDITS
    NOV 18, 2019 7:00 AM PST
    DATE: November 18, 2019TIME: 7:00am PST, 11:00am EST, 4:00pm CEWT How often do you pipette in your cell culture lab every day? Usually, we do it so often that we tend stop th...
    Loading Comments...
    Show Resources