Advancing knowledge of human development, developmental disabilities, and neurodegenerative diseases.
UW–Madison’s Karla Ausderau, an assistant professor in the School of Education’s Department of Kinesiology, has been awarded a COVID-19 Response Research and Education Award from the Wisconsin Partnership Program (WPP) at the UW–Madison School of Medicine and Public Health.
Over the last decade, multiple studies have highlighted the essential role of gut microbiota in normal infant development. However, the sensitive periods during which gut bacteria are established and become associated with physical growth and maturation of the brain are still poorly defined. This study tracked the assembly of the intestinal microbiota during the initial nursing period, and changes in community structure after transitioning to solid food in infant rhesus monkeys (Macaca mulatta).
Hearing impairment (HI) is an epidemic affecting over 1.5 billion individuals of all ages. Globally, unaddressed HI causes losses of ~US$1 trillion each year. Addressing HI requires early detection which current hearing screening tools are inadept at doing efficiently. Specifically, current hearing screening tools can either only index the sensory cells in the inner ear or require measurement of brainstem electroencephalography (EEG) to index the sensory cells and the auditory nerve which require additional resources.
Alzheimer's disease is characterized by accumulation of amyloid and neurofibrillary tangles, and this pathology can be detected using neuroimaging or fluid biomarkers prior to the development of dementia. The Alzheimer's disease process also involves neurodegeneration which eventually leads to cognitive decline and dementia, however typical approaches for measuring neurodegeneration (such as T1-weighted imaging), may not be sensitive to neurodegeneration in the asymptomatic disease stage.
Down syndrome (DS, trisomy 21) is characterized by intellectual impairment at birth and Alzheimer's disease (AD) pathology in middle age. As individuals with DS age, their cognitive functions decline as they develop AD pathology.
The spinal cord contains billions of neurons, with a huge diversity of subtypes enabling sensory, proprioceptive, and motor function. However, current human stem cell-based in vitro models and prospective cell transplantation therapies fail to reflect the significant regional specificity of spinal cells.
The UW Center for Human Genomics and Precision Medicine at the UW School of Medicine and Public Health recently opened its first patient clinic, the UW Undiagnosed Genetic Disease Clinic at the Waisman Center.
Voluntary running enhances adult hippocampal neurogenesis, with consequences for hippocampal-dependent learning ability and mood regulation. However, the underlying mechanism remains unclear. Here, we show that voluntary running induces unique and dynamic gene expression changes specifically within the adult-born hippocampal neurons, with significant impact on genes involved in neuronal maturation and human diseases. We identify the regulator of G protein signaling 6 (RGS6) as a key factor that mediates running impact on adult-born neurons.
Autism spectrum disorder (ASD) is consistently diagnosed 3 to 5 times more frequently in males than females, a dramatically sex-biased prevalence that suggests the involvement of sex-differential biological factors in modulating risk. The genomic scale of transcriptomic analyses of human brain tissue can provide an unbiased approach for identifying genes and associated functional processes at the intersection of sex-differential and ASD-impacted neurobiology.
Could Alzheimer’s disease and schizophrenia be biologically connected?
