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CSF levels of synap...
CSF levels of synaptosomal-associated protein 25 and synaptotagmin-1 in first-episode psychosis subjects.
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- Xu, Chengai (author)
- Karolinska Institute
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- Sellgren, Carl M (author)
- Karolinska Institute,Karolinska Institutet
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- Fatouros-Bergman, Helena (author)
- Stockholm County Council,Karolinska Institute,Karolinska Institutet
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- Piehl, Fredrik (author)
- Karolinska Institute,Karolinska Institutet
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- Blennow, Kaj (author)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry
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- Zetterberg, Henrik (author)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry
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- Brinkmalm, Ann (author)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry
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- Santillo, Alexander Frizell (author)
- Stockholm County Council,Lund University,Lunds universitet,Klinisk minnesforskning,Forskargrupper vid Lunds universitet,Clinical Memory Research,Lund University Research Groups,Stockholms läns sjukvårdsområde
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- Lundgren, Sofia (author)
- Lund University,Lunds universitet,Klinisk minnesforskning,Forskargrupper vid Lunds universitet,Clinical Memory Research,Lund University Research Groups
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- Cervenka, Simon (author)
- Stockholm County Council,Karolinska Institutet
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- Engberg, Göran (author)
- Karolinska Institute,Karolinska Institutet
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- Erhardt, Sophie (author)
- Karolinska Institute,Karolinska Institutet
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(creator_code:org_t)
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- Elsevier BV, 2020
- 2020
- English.
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In: IBRO reports. - : Elsevier BV. - 2451-8301. ; 8, s. 136-142
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Abstract
Subject headings
Close
- Post-mortem studies consistently show evidence of reduced synaptic protein levels in patients with schizophrenia. Clinically high-risk subjects show a steeper decrease in grey matter thickness and in vitro modeling using patient-derived cells implicate excessive synaptic pruning during neurodevelopment as a part of the schizophrenia pathophysiology. However, it is unclear to what extent synapse elimination is present during various stages of the disease, which is of clinical importance as in a real-world setting most subjects received their first-episode psychosis (FEP) diagnosis not until their mid-twenties. In the present study, we measured cerebrospinal fluid (CSF) concentrations of the two pre-synaptic proteins synaptosomal-associated protein 25 (SNAP-25) and synaptotagmin-1 (SYT-1), both of which are increased in conditions of ongoing synaptic degeneration, in 44 FEP subjects (mean age 29.9 years) and 21 healthy controls (25.9 years) using immunoprecipitation mass spectrometry. Neither protein was found to differ between healthy controls and patients, and they showed no correlation with symptom ratings, cognitive performance or antipsychotic medication. Additional studies in high-risk subjects in the early prodromal phase will be needed to address if excessive synapse destruction occurs before the development of overt psychotic symptoms.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Psykiatri (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Psychiatry (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
Keyword
- BACS-SC
- Brief Assessment of Cognition in Schizophrenia Symbol Coding
- BMI
- body mass index
- BVMT-R
- Brief Visuospatial Memory Test-Revised
- CGI
- Clinical Global Impression
- CPT-IP
- Continuous Performance Test-Identical Pairs
- DUP
- duration of untreated psychosis
- FEP
- first-episode psychosis
- GAF
- Global Assessment of Functioning
- HC
- healthy controls
- HVLT-R
- Hopkins Verbal Learning Test-Revised
- LNS
- Letter-Number Span
- MSCEIT
- Mayer–Salovey– Caruso Emotional Intelligence Test
- NAB: MAZES
- Neuropsychological Assessment Battery: Mazes
- PANSS
- the Positive and Negative Syndrome Scale
- SNAP-25
- SYT-1
- Schizophrenia
- Synapse pruning
- TMT
- Trail Making Test
- WMS-III
- Wechsler Memory Scale-3rd Edition
- Schizophrenia
- SNAP-25
- Synapse pruning
- SYT-1
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
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Xu, Chengai
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Sellgren, Carl M
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Fatouros-Bergman ...
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Piehl, Fredrik
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Blennow, Kaj
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Zetterberg, Henr ...
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show more...
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Brinkmalm, Ann
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Santillo, Alexan ...
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Lundgren, Sofia
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Cervenka, Simon
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Engberg, Göran
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Erhardt, Sophie
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show less...
- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Psychiatry
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Neurology
- Articles in the publication
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IBRO reports
- By the university
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Uppsala University
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Karolinska Institutet
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Lund University
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University of Gothenburg