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An analysis of synapsin II, a neuronal phosphoprotein, in postmortem brain tissue from alcoholic and neuropsychiatrically ill adults and medically ill children and young adults.

Abstract
Synapsin II (formerly known as protein III) is a synaptic vesicle-associated neuronal phosphoprotein that may be involved in the regulation of neurotransmitter release. Synapsin II was studied in postmortem brain samples from 132 individuals with various neuropsychiatric and medical diagnoses. Molecular weight variants of synapsin II were present in 73% of samples from alcoholic individuals but in only 31% of samples from non-diseased individuals, thus confirming our two previous reports of an association between synapsin II variants and alcoholism. The presence of synapsin II variants was not correlated with age or nutritional state. Synapsin II variants were also present in 56% of samples from individuals with schizophrenia and 41% of samples from individuals with Huntington's disease. Synapsin II variants were present in samples from children and young adults, consistent with the possibility that synapsin II variants may reflect a genetically inherited trait. Synapsin II variants were not found in any of 18 rodent models of alcoholism, aging, or vitamin B deficiency, suggesting that synapsin II variants may be a uniquely human trait.
AuthorsJ A Grebb, P Greengard
JournalArchives of general psychiatry (Arch Gen Psychiatry) Vol. 47 Issue 12 Pg. 1149-56 (Dec 1990) ISSN: 0003-990X [Print] United States
PMID2147098 (Publication Type: Comparative Study, Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, U.S. Gov't, P.H.S.)
Chemical References
  • Nerve Tissue Proteins
  • Neuropeptides
  • Phosphoproteins
  • Synapsins
Topics
  • Adult
  • Age Factors
  • Aged
  • Aging (metabolism)
  • Alcoholism (genetics, metabolism)
  • Animals
  • Brain (metabolism)
  • Brain Chemistry
  • Child
  • Child, Preschool
  • Disease Models, Animal
  • Female
  • Humans
  • Huntington Disease (genetics, metabolism)
  • Male
  • Mice
  • Middle Aged
  • Models, Biological
  • Molecular Weight
  • Nerve Tissue Proteins (analysis, genetics)
  • Neuropeptides (analysis, genetics)
  • Nutritional Status
  • Phosphoproteins (analysis, genetics)
  • Phosphorylation
  • Rats
  • Schizophrenia (genetics, metabolism)
  • Synapsins

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