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Dementia plaques attack language center of brain

Researchers have discovered that amyloid protein build-up is greater on the left side of the brain, where language processing occurs, in individuals with primary progressive aphasia (PPA). This study provides new insights into the disease process and offers hope for early diagnosis and treatment.

SourceNorthwestern University·JournalAnnals of Neurology·DateMar 7, 2016

A new biomarker of brain inflammation in early-stage Alzheimer's disease

A new biomarker of brain inflammation in early-stage Alzheimer's disease has been identified, indicating that microglia-mediated inflammation may demarcate the transition from preclinical to full dementia. The TREM2 protein fragment in cerebrospinal fluid levels closely mirror microglia activity during the course of the disease.

SourceEMBO·JournalEMBO Molecular Medicine·DateMar 3, 2016

Fishing for answers about mercury consumption

Researchers at Rush University Medical Center found that moderate seafood consumption was associated with less Alzheimer's disease pathology, including lower amyloid plaques and tangles. Seafood intake was only linked to reduced harm when individuals had a specific genetic profile, highlighting the need for personalized nutrition advice.

DNA repair factor linked to breast cancer may also play a role in Alzheimer's disease

Research suggests that low levels of BRCA1 protein in the brain may contribute to dementia. The study found that adding amyloid beta to neurons lowers levels of BRCA1, increasing DNA damage and cognitive decline. Further research is needed to determine whether BRCA1 may be a potential therapeutic target for treating dementia.

Chronic diseases may increase risk of dementia

A study of 2176 cognitively normal participants found that those with multiple chronic conditions were 38% more likely to develop mild cognitive impairment or dementia. Preventing chronic diseases may help maintain mental health in aging adults.

SourceWiley·JournalJournal of the American Geriatrics Society·DateSep 21, 2015

Low vitamin D associated with faster decline in cognitive function

A study found that vitamin D insufficiency was associated with a faster decline in cognitive functions among older adults. The research, published in JAMA Neurology, revealed that African American and Hispanic individuals were more likely to have vitamin D insufficiency or deficiency. Participants with inadequate vitamin D levels exper...

SourceJAMA Network·JournalJAMA Neurology·DateSep 14, 2015