Katerina Lebedeva

 Katerina Lebedeva

Katerina Lebedeva

  • Courses3
  • Reviews4

Biography

University of Saskatchewan - Psychology



Experience

  • Saratov State Socio-Economic University

    Research Assistant

    Conducted experimental studies in clinical populations (schizophrenia patients) on constitutional biomarkers of risks for developing paranoid schizophrenia. The Research group was funded with Grant from the Ministry of Education and Science of Russian Federation (Principal Investigator – Dr.Alexander Zaichenko, MD).

  • University of Saskatchewan

    Instructor

    My primary role in this position is to coordinate, supervise and teach laboratory components of the undergraduate courses offered in the Biomedical Sciences primarily in the areas of Physiology and Pharmacology.

  • Saskatchewan Neuroscience Network

    The Brain Bee (modelled after Spelling Bee) competition tests the high school students' knowledge in various topics of neuroscience, and motivates the students to pursue neuroscience and health science related careers.

    The winner of the regional Brain Bee represents the province in the national and international Brain Bee Championships.

    http://brainbee.ca/

  • Saskatchewan Young Professionals & Entrepreneurs (SYPE)

    Planned and organized networking events for SYPE members

Education

  • Saratov State Socio-Economic University

    Specialist / Bachelor of Arts

    Psychology and Pedagogy, Forensic Psychology

  • Saratov State Socio-Economic University

    Research Assistant


    Conducted experimental studies in clinical populations (schizophrenia patients) on constitutional biomarkers of risks for developing paranoid schizophrenia. The Research group was funded with Grant from the Ministry of Education and Science of Russian Federation (Principal Investigator – Dr.Alexander Zaichenko, MD).

  • University of Saskatchewan

    Doctor of Philosophy (Ph.D.)

    Cognition and Neuroscience, Psychology
    Conducted research on developing new animal models of the major depressive disorder, identifying neurobiological mechanisms underlying the cyclical nature of major depression, analyzing potential peripheral (blood based) biomarkers of antidepressant treatment response.

  • Teacher Scholar Doctoral Fellowship



  • Graduate Teaching Fellowship



  • MA Dean’s Scholarship



  • University of Saskatchewan

    Instructor


    My primary role in this position is to coordinate, supervise and teach laboratory components of the undergraduate courses offered in the Biomedical Sciences primarily in the areas of Physiology and Pharmacology.

Publications

  • “Biometric indices of constitutional risks for developing paranoid schizophrenia in male patients

    Saratov Journal of Medical Scientific Research: Vol. 5 - № 3. P. 384-389

  • “Biometric indices of constitutional risks for developing paranoid schizophrenia in male patients

    Saratov Journal of Medical Scientific Research: Vol. 5 - № 3. P. 384-389

  • The progressive development of depression-like behavior in corticosterone-treated rats is paralleled by slowed granule cell maturation and decreased reelin expression in the adult dentate gyrus

    Neuropharmacology 2

  • “Biometric indices of constitutional risks for developing paranoid schizophrenia in male patients

    Saratov Journal of Medical Scientific Research: Vol. 5 - № 3. P. 384-389

  • The progressive development of depression-like behavior in corticosterone-treated rats is paralleled by slowed granule cell maturation and decreased reelin expression in the adult dentate gyrus

    Neuropharmacology 2

  • Cyclical Corticosterone Administration Sensitizes Depression-Like Behavior in Rats

    Neuroscience Letters

    Because stress is a significant risk factor for depression, many animal models of depression employ chronic stress as a precipitating event. However, almost without exception, stress-induced animal models of depression focus on a single bout of depression and therefore, they do not provide any means to understand the typical cycling of mood observed in most patients with depression. Here we assessed whether repeated cycles of exposure to the stress hormone corticosterone would sensitize depression-like behavior. Rats were treated with corticosterone (CORT; 20 or 40 mg/kg) or vehicle for two cycles (21 days each), followed by a 21-day recovery period. Depression-like behavior was assessed via repeated forced swim tests (FSTs) in the middle and at the end of each CORT treatment and at the end of each recovery period. Our results showed that CORT administration for two cycles produces increasingly greater effects on depression-like behavior and a decrease in recovery between cycles. Potential confounding effects of body weight and repetitive behavioral testing are considered in the interpretation of these effects. Our approach of using more than one cycle of CORT exposure provides strong face validity as it mimics several aspects of human depression. The use of multiple cycles of CORT exposure may provide a means to study the episode recurrence seen in more than 70% of patients with depression.

  • “Biometric indices of constitutional risks for developing paranoid schizophrenia in male patients

    Saratov Journal of Medical Scientific Research: Vol. 5 - № 3. P. 384-389

  • The progressive development of depression-like behavior in corticosterone-treated rats is paralleled by slowed granule cell maturation and decreased reelin expression in the adult dentate gyrus

    Neuropharmacology 2

  • Cyclical Corticosterone Administration Sensitizes Depression-Like Behavior in Rats

    Neuroscience Letters

    Because stress is a significant risk factor for depression, many animal models of depression employ chronic stress as a precipitating event. However, almost without exception, stress-induced animal models of depression focus on a single bout of depression and therefore, they do not provide any means to understand the typical cycling of mood observed in most patients with depression. Here we assessed whether repeated cycles of exposure to the stress hormone corticosterone would sensitize depression-like behavior. Rats were treated with corticosterone (CORT; 20 or 40 mg/kg) or vehicle for two cycles (21 days each), followed by a 21-day recovery period. Depression-like behavior was assessed via repeated forced swim tests (FSTs) in the middle and at the end of each CORT treatment and at the end of each recovery period. Our results showed that CORT administration for two cycles produces increasingly greater effects on depression-like behavior and a decrease in recovery between cycles. Potential confounding effects of body weight and repetitive behavioral testing are considered in the interpretation of these effects. Our approach of using more than one cycle of CORT exposure provides strong face validity as it mimics several aspects of human depression. The use of multiple cycles of CORT exposure may provide a means to study the episode recurrence seen in more than 70% of patients with depression.

Positions

  • Saskatchewan Young Professionals and Entrepreneurs (SYPE)

    Board Member

  • Saskatchewan Young Professionals and Entrepreneurs (SYPE)

    Board Member

  • Saskatchewan Neuroscience Network

    Organizer of community outreach events (Brain Bee, Brain Blast, Brain Day).

  • Saskatchewan Young Professionals and Entrepreneurs (SYPE)

    Board Member

  • Saskatchewan Neuroscience Network

    Organizer of community outreach events (Brain Bee, Brain Blast, Brain Day).

  • Saskatchewan Young Professionals and Entrepreneurs (SYPE)

    Board Member

  • Saskatchewan Neuroscience Network

    Organizer of community outreach events (Brain Bee, Brain Blast, Brain Day).

  • Saskatchewan Young Professionals and Entrepreneurs (SYPE)

    Board Member

  • Saskatchewan Neuroscience Network

    Organizer of community outreach events (Brain Bee, Brain Blast, Brain Day).

  • Saskatchewan Young Professionals and Entrepreneurs (SYPE)

    Board Member

  • Saskatchewan Neuroscience Network

    Organizer of community outreach events (Brain Bee, Brain Blast, Brain Day).