Sina Hafizi

Dr. Sina Hafizi

Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, ON M5T 1R8, Canada
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Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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Journal Article
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HBHenry Barron
Henry Barron
SHSina Hafizi
Sina Hafizi
AAAna C. Andreazza
Ana C. Andreazza
RMRomina Mizrahi
Romina Mizrahi
Although our understanding of psychotic disorders has advanced substantially in the past few decades, very little has changed in the standard of care for these illnesses since the development of atypical anti-psychotics in the 1990s. Here, we integrate new insights into the pathophysiology with the increasing interest in early detection and prevention. First, we explore the role of N-methyl-d-aspartate receptors in a subpopulation of cortical parvalbumin-containing interneurons (PVIs). Postmortem and preclinical data has implicated these neurons in the positive and negative symptoms, as well as the cognitive dysfunction present in schizophrenia. These neurons also appear to be sensitive to inflammation and oxidative stress during the perinatal and peripubertal periods, which may be mediated in large part by aberrant synaptic pruning. After exploring some of the molecular mechanisms through which neuroinflammation and oxidative stress are thought to exert their effects, we highlight the progress that has been made in identifying psychosis prior to onset through the identification of individuals at clinical high risk for psychosis (CHR). By combining our understanding of psychosis pathogenesis with the increasing characterization of endophenotypes that precede frank psychosis, it may be possible to identify patients before they present with psychosis and intervene to reduce the burden of the disease to both patients and families.

1 October 2018 in Pediatrics & Neonatology
Verified
Journal Article
Open access
MGMahboubeh Ghayour-Najafabadi
Mahboubeh Ghayour-Najafabadi
MSMahmoud Sheikh
Mahmoud Sheikh
RHRasoul Hemayattalab
Rasoul Hemayattalab
AMAmir-Hossein Memari
Amir-Hossein Memari
MAMaryam Rezaii Aderyani
Maryam Rezaii Aderyani
SHSina Hafizi
Sina Hafizi
This study aimed to evaluate the effectiveness of a selected group exercise known as Sports, Play and Active Recreation for Kids (SPARK) on the motor and behavioral skills of children with autism spectrum disorder (ASD) using a quasi-experimental design with repeated measures. Twenty-eight children with ASD (age range of 5e12 years) participated in this study. The participants were examined at baseline, pre-test, and post-test using Bruininks-Oseretsky Test of Motor Proficiency (BOTMP), Autism treatment evaluation checklist (ATEC), and Gilliam Autism Rating Scale-second edition (GARS-2). The results showed that the SPARK program significantly improved balance (static and dynamic), bilateral coordination and social interaction (p < 0.05) in children with ASD. The results of this study suggest that the SPARK's training can be considered as a therapeutic option not only for motor enhancement but also for improving social skills in children with ASD.

1 September 2015 in International Immunopharmacology
Verified
Journal Article
Closed access
ASAmene Saghazadeh
Amene Saghazadeh
SHSina Hafizi
Sina Hafizi
NRNima Rezaei
Nima Rezaei

1 February 2017 in American Journal of Psychiatry
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Journal Article
Closed access
SHSina Hafizi
Sina Hafizi
HTHuai-Hsuan Tseng
Huai-Hsuan Tseng
NRNaren Rao
Naren Rao
TSThiviya Selvanathan
Thiviya Selvanathan
MKMiran Kenk
Miran Kenk
RMRomina Mizrahi
Romina Mizrahi

12 June 2017 in Neuropsychopharmacology
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Journal Article
Closed access
SHSina Hafizi
Sina Hafizi
TSTania Da Silva
Tania Da Silva
CGCory Gerritsen
Cory Gerritsen
MKMichael Kiang
Michael Kiang
RBR Michael Bagby
R Michael Bagby
RMRomina Mizrahi
Romina Mizrahi

1 December 2019 in JAMA Psychiatry
Verified
Journal Article
Open access
PDF file
TSTania Da Silva
Tania Da Silva
SHSina Hafizi
Sina Hafizi
JWJeremy J. Watts
Jeremy J. Watts
CWCynthia Shannon Weickert
Cynthia Shannon Weickert
JMJeffrey H. Meyer
Jeffrey H. Meyer
RMRomina Mizrahi
Romina Mizrahi
Almost 4% of the global population used cannabis in the past year,1 consistent with higher rates of cannabis use and cannabis use disorder (CUD), along with a decline in its perceived risk.2,3 Habitual cannabis use is associated with long-term changes in the brain,2 making it a growing public health concern in youth, particularly given the legalization trend across the world.