In autosomal dominant acute necrotizing encephalopathy (ADANE), apparently healthy children develop necrotizing lesions in their thalami and brainstems in the course of febrile illnesses. We used DNA from affected subjects and obligate carriers to map ADANE to a 6.5Mb region on chromosome 2. Sequencing of four candidate genes in the interval (BCL2L11, ST6GalII, CHT1, and FLJ20019), involved in apoptosis, viral recognition, choline transport, and electron transport, showed no disease causing mutations.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/ana.10849 | DOI Listing |
Alzheimers Dement
December 2024
Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Background: Plasma tau phosphorylated at threonine 231 (p-tau231) is a promising novel biomarker of emerging Alzheimer's disease (AD) pathology. We aimed to characterize cross-sectional and longitudinal plasma p-tau231 measurements and estimated ages of biomarker onset in an exceptionally large number of presenilin (PSEN1) E280A (Glu280Ala) mutation carriers and age-matched non-carriers from the Colombian autosomal dominant Alzheimer's disease kindred.
Method: We included a cohort of 722 PSEN1 E280A mutation carriers (mean age 36.
Alzheimers Dement
December 2024
Washington University in St. Louis, School of Medicine, St. Louis, MO, USA.
Background: Autosomal dominant Alzheimer disease (ADAD) is characterized by genetic mutations affecting the beta-amyloid (Aβ) pathway. However, vascular and immune factors play important roles which are not completely understood. Understanding the function of the neurovascular unit (NVU) comprised of neurons, glial cells, and vasculature, at different disease stages appears ideal to developing and evaluating therapeutics.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Department of Neurobiology, Care Sciences and Society, Center for Alzheimer Research, Division of Clinical Geriatrics, Karolinska Institutet, Stockholm, Sweden.
Background: [F]FDG PET is essential since it allows us to differentiate between different dementia disorders/types, revealing distinct neurodegenerative patterns in those predisposed to the condition. Individuals with Autosomal Dominant Alzheimer's Disease (ADAD) have a predictable age of onset, enabling the study of cognitive and pathological changes before clinical manifestation. Our objective was to investigate temporal course and regional links between cognition and glucose metabolism as a measure of early synaptic impairment in ADAD.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Instituto Neurológico de Colombia, Medellin, Antioquia, Colombia.
Background: This study examines an exceptional case of CADASIL (Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy), a hereditary cerebrovascular disease caused by a mutation in the notch3 gene. In contrast to typical cases manifesting before the age of 50 with migraines, this report highlights an atypical presentation in a 70-year-old woman with no history of migraines nor cognitive impairment.
Method: The patient, with a history of type 2 diabetes, hypothyroidism, and dyslipidemia, was initially treated for cognitive impairment and behavioral changes under suspicion of autoimmune encephalitis.
Alzheimers Dement
December 2024
Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA.
Background: The buildup of brain amyloid-beta and tau protein aggregates do not sufficiently explain the heterogeneity in cognitive impairment in Alzheimer's disease (AD).
Method: To elucidate drivers of cognitive impairment, we measure the levels of 7,000 proteins, in addition to amyloid-beta-42 (Ab42) and phospho-tau-181 (PTau181), from the cerebrospinal fluid of 2,000 individuals from healthy to severe dementia.
Result: We identify synapse proteins as the strongest correlates of cognitive impairment.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!