Behavioral & Cognitive Disorders News

May 19, 2017
Can omega-3 help prevent Alzheimer disease? SPECT imaging shows possible link
A new article published in the Journal of Alzheimer's Disease reports statistically significant relationships between the Omega-3 index, regional perfusion on brain SPECT in areas involved with memory, and neurocognitive testing.
May 16, 2017
Spread of tau protein measured in the brains of Alzheimer patients
Study results show that the size of the tau deposit and the speed of its spread differ from one individual to the next, and that large amounts of tau in the brain can be linked to episodic memory impairment.
May 12, 2017
Dementia-related brain changes observed before memory or thinking problems are noticeable
Scientists have discovered a potential brain imaging predictor for dementia, which illustrates that changes to the brain's structure -- less brain tissue in the the anterolateral entorhinal -- may occur years prior to a diagnosis, even before individuals notice their own memory problems.
May 09, 2017
Study finds low body mass index is not a causal risk factor for Alzheimer disease
A new large-scale genetic study found that low body mass index is likely not a causal risk factor for Alzheimer disease, as earlier research had suggested, according to a study published in the Journal of Clinical Endocrinology & Metabolism.
May 08, 2017
Shortage of progranulin is a frequent cause of frontotemporal dementia
Study findings published in Human Molecular Genetics suggest that dysfunction of lysosomal enzymes such as cathepsin D can contribute to neuronal dysfunction caused by progranulin deficiency in diseases such as frontotemporal dementia.
May 01, 2017
Brain tissue structure could explain link between fitness and memory
A new study by University of Illinois researchers published in NeuroImage suggests that the viscoelasticity of the hippocampus may be the mediating factor in the relationship between fitness and memory in healthy young adults.
Mar 28, 2017
Brain stimulation improves schizophrenia-like cognitive problems
A new study published in Molecular Psychiatry finds that stimulating the cerebellum in rats with schizophrenia-like thinking problems normalizes brain activity in the frontal cortex and corrects the rats' ability to estimate the passage of time - a cognitive deficit that is characteristic in people with schizophrenia
Mar 22, 2017
Alzheimer disease linked to the metabolism of unsaturated fats
A new study published in PLOS Medicine's Special Issue on Dementia has found that the metabolism of omega-3 and omega-6 unsaturated fatty acids in the brain are associated with the progression of Alzheimer disease.
Mar 16, 2017
Cause of obsessive-compulsive disorder discovered
German researchers show in mouse models that the absence of the protein SPRED2 alone can trigger excessive grooming behavior. This protein absence increases the activity of the Ras/ERK-MAP kinase cascade, leading to obsessive compulsive symptoms.
Mar 13, 2017
Never before seen images of early stage Alzheimer disease
Researchers at Lund University have used the MAX IV synchrotron to produce images that predate the formation of of beta-amyloid plaques. They reveal that beta-amyloid is not a single peptide, but instead a tetramer. This suggests that instead of attempting to eliminate beta-amyloid, it should be stabilized.
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